CN109353756A - Heavy permanent magnetism scrapper conveyor - Google Patents
Heavy permanent magnetism scrapper conveyor Download PDFInfo
- Publication number
- CN109353756A CN109353756A CN201811475965.0A CN201811475965A CN109353756A CN 109353756 A CN109353756 A CN 109353756A CN 201811475965 A CN201811475965 A CN 201811475965A CN 109353756 A CN109353756 A CN 109353756A
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- Prior art keywords
- explosion
- permanent magnet
- proof housing
- scrapper conveyor
- magnet synchronous
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- 230000005389 magnetism Effects 0.000 title claims abstract description 21
- 230000001360 synchronised effect Effects 0.000 claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 31
- 210000003205 muscle Anatomy 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001522296 Erithacus rubecula Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
- B65G19/20—Traction chains, ropes, or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/02—Belt- or chain-engaging elements
- B65G23/04—Drums, rollers, or wheels
- B65G23/06—Drums, rollers, or wheels with projections engaging abutments on belts or chains, e.g. sprocket wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/22—Arrangements or mountings of driving motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/24—Gearing between driving motor and belt- or chain-engaging elements
- B65G23/30—Variable-speed gearing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/136—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses heavy permanent magnetism scrapper conveyors, comprising: scraper chain, chain wheel assembly, retarder and the constant speed permanent magnet synchronous motor being arranged in mine and the frequency converter connected with constant speed permanent magnet synchronous motor；Constant speed permanent magnet synchronous motor is connected with retarder, retarder is connected with chain wheel assembly, chain wheel assembly and scraper plate chain link, and permanent magnet synchronous motor includes explosion-proof housing, stator, p-m rotor and explosion-proof end housing, cooling duct is equipped in the shell of explosion-proof housing, explosion-proof housing is externally provided with radiating ribs.P-m rotor can generate permanent magnetic field under the action of permanent magnet, it is always under synchronous regime with magnetic field caused by stator, under the action of frequency converter, it not only may be implemented to be precisely controlled, but also it can be with slow start, the instant impact of scraper chain is reduced, and then solves the chain breaking problem of scrapper conveyor.Secondly by the cooling duct and radiating ribs being arranged on explosion-proof housing, heat dissipation effect can be effectively improved, then guarantees the normal operation of scrapper conveyor.
Description
Technical field
The present invention relates to mining scraper machine technical fields, more particularly to a kind of heavy permanent magnetism scrapper conveyor.
Background technique
The raw coal of underground coal mine by coalcutter adopt it is lower after fall directly on scrapper conveyor, scrapper conveyor transports on elevating conveyor,
Elevating conveyor transports belt feeder, by the transport to well of belt feeder.
In order to improve the stability of colliery downhole equipment and advocate national environmental protection power conservation requirement, belt electric motor is by original
Explosion-proof three-phase constant speed asynchronous motor gradually replaced by low-speed big permanent magnet motor.And scrapper conveyor is narrow due to space
It is narrow, it is not available low speed high torque motor, or use original explosion-proof three-phase constant speed asynchronous motor.
It is usually by two and two or more motor drives that existing scrapper conveyor, which is especially some heavy type scratch board machines,.Reality is mined
In technique, scrapper conveyor often will appear starting failure and chain breaking problem, and main cause is:
One, the frequent heavy-load start of scrapper conveyor, and asynchronous motor does not have enough turn due to the working principle of itself
Square meets the heavy-load start of scrapper conveyor.
Two, chain breaking problem, since asynchronous motor is that power frequency starts, instant impact is larger and earn when chain is due to starting
It is disconnected；When multimachine drives, moment unbalance causes the sprocket wheel relative position of frame head and tail to change, and chain continues stress excess load and earns
It is disconnected.
Two above reason can all cause chain rupture, influence production security, continuity and economy.Existing scrapper conveyor one
As have two kinds of type motor-drivens of double speed asynchronous machine or frequency converter asynchronous machine.
Therefore, how to provide a kind of heavy permanent magnetism scrapper conveyor to meet heavy load starting, energy conservation and avoid chain rupture situation is
Those skilled in the art's technical problem urgently to be solved.
Summary of the invention
The object of the present invention is to provide a kind of heavy permanent magnetism scrapper conveyor, the problems such as can effectively solving energy waste, chain rupture.
In order to solve the above technical problems, the present invention provides the following technical scheme that
A kind of heavy type permanent magnetism scrapper conveyor, comprising: scraper chain, chain wheel assembly, retarder and the constant speed being arranged in mine are forever
Magnetic-synchro motor and the frequency converter connected with the constant speed permanent magnet synchronous motor；The constant speed permanent magnet synchronous motor and described
Retarder connection, the retarder are connected with the chain wheel assembly, the chain wheel assembly and the scraper plate chain link, the permanent magnetism
Synchronous motor includes explosion-proof housing, stator, p-m rotor and explosion-proof end housing, is equipped in the shell of the explosion-proof housing cooling logical
Road, the explosion-proof housing are externally provided with radiating ribs.
Preferably, circumferential Spiral distribution of the cooling duct along the explosion-proof housing.
Preferably, the extending direction of the cooling duct is parallel with the axial direction of the explosion-proof housing.
Preferably, the cooling duct communicated in the shell of the explosion-proof housing equipped with a plurality of head and the tail.
Preferably, the explosion-proof housing includes outer barrel, inner cylinder and water channel muscle, and the outer barrel is set in the inner cylinder
Outside body, the water channel muscle is arranged between the outer barrel and the inner cylinder, the outer barrel and the outer barrel and
The water channel muscle constitutes the cooling duct.
Preferably, the armature spindle for installing the p-m rotor is insulation rotor axis, is used to support the armature spindle
Bearing is insulation bearing.
Compared with prior art, above-mentioned technical proposal has the advantage that
A kind of heavy permanent magnetism scrapper conveyor provided by the present invention, comprising: scraper chain, chain wheel assembly, retarder and setting exist
Constant speed permanent magnet synchronous motor in mine and the frequency converter connected with constant speed permanent magnet synchronous motor；Constant speed permanent magnet synchronous motor
It is connected with retarder, retarder is connected with chain wheel assembly, and chain wheel assembly and scraper plate chain link, permanent magnet synchronous motor includes blasting-proof machine
Shell, stator, p-m rotor and explosion-proof end housing, the shell of explosion-proof housing is interior to be equipped with cooling duct, and explosion-proof housing is externally provided with radiating ribs.
P-m rotor itself can generate permanent magnetic field under the action of permanent magnet, be always at magnetic field caused by stator synchronous
Under state, so the connection approximation rigid connection of the two not only may be implemented to be precisely controlled under the action of frequency converter, but also
The instant impact of scraper chain can be reduced, and then solve the chain breaking problem of scrapper conveyor with slow start.Secondly by blasting-proof machine
The cooling duct being arranged on shell and radiating ribs can effectively improve heat dissipation effect, then guarantee the normal operation of scrapper conveyor.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the present invention or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is of the invention some
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is a kind of structural schematic diagram of heavy permanent magnetism scrapper conveyor provided by a kind of specific embodiment of the present invention.
Appended drawing reference is as follows:
1 is chain wheel assembly, and 2 be scraper chain, and 3 be retarder, and 4 be frequency converter, and 5 be constant speed permanent magnet synchronous motor.
Specific embodiment
It is understandable in order to enable the above objects, features and advantages of the present invention to become apparent, with reference to the accompanying drawing to this hair
Bright specific embodiment is described in detail.
Detail is elaborated in the following description to fully understand the present invention.But the present invention can with it is a variety of not
Other way described herein is same as to implement, those skilled in the art can do class without violating the connotation of the present invention
Like popularization.Therefore the present invention is not limited by following public specific embodiment.
Referring to FIG. 1, Fig. 1 is a kind of structure of heavy permanent magnetism scrapper conveyor provided by a kind of specific embodiment of the present invention
Schematic diagram.
A kind of specific embodiment of the invention provides a kind of heavy permanent magnetism scrapper conveyor, comprising: scraper chain 2, chain wheel set
Part 1, retarder 3 and the constant speed permanent magnet synchronous motor 5 being arranged in mine and the change connected with constant speed permanent magnet synchronous motor 5
Frequency device 4；Constant speed permanent magnet synchronous motor 5 and retarder 3 connect, and retarder 3 and chain wheel assembly 1 connect, chain wheel assembly 1 and scraper chain
2 connections, permanent magnet synchronous motor include explosion-proof housing, stator, p-m rotor and explosion-proof end housing, are equipped in the shell of explosion-proof housing cold
But channel, explosion-proof housing are externally provided with radiating ribs.
In the present embodiment, p-m rotor itself can generate permanent magnetic field under the action of permanent magnet, with stator institute
The magnetic field of generation is always under synchronous regime, so the connection approximation rigid connection of the two, under the action of frequency converter 4, no
It only may be implemented to be precisely controlled, but also the instant impact of scraper chain 2 can be reduced, and then solve scrapper conveyor with slow start
Chain breaking problem.Secondly by the cooling duct and radiating ribs being arranged on explosion-proof housing, heat dissipation effect can be effectively improved, is then protected
Demonstrate,prove the normal operation of scrapper conveyor.Furthermore frequency converter 4 be permanent magnet synchronous motor special converter 4, need to meet it is quick, sensitive and
It accurately requires, has over-speed protection function for permanent magnet synchronous motor, with electrically and mechanically dual return-stopping function, prevent permanent magnetism
Synchronous motor reversion power generation breakdown frequency converter 4.
Importantly, the starting torque of constant speed permanent magnet synchronous motor 5 is big, and it is 1.3~1.5 times of common asynchronous moter, weight
It is strong to carry starting capability, can effectively solve the difficulty of scrapper conveyor full load starting.Specification can be reduced compared with asynchronous machine type selecting, had
Effect solves the two-way waste of cost and electric energy.
Wherein by the combination with special converter 4, it can be achieved that the torque balance of multimachine driving is controlled and is precisely controlled
Rotor rotation, chain will not be caused to earn because of duplex running discontinuity equalization it is disconnected, may be implemented complex control movement reduce
Chain rupture probability.Secondly scrapper conveyor operating condition is frequent start-stop, and constant speed permanent magnet synchronous motor 5 is in low-load, average efficiency
More than 85%, power factor is more than 95%, and power saving effect is obvious.It furthermore can directly change driving on the basis of existing scrapper conveyor
Motor and other components can be completely motionless, therefore save cost.
Further, circumferential Spiral distribution of the cooling duct along explosion-proof housing.Water can be wherein passed through in cooling duct, with
Realize the purpose cooling to explosion-proof housing.Secondly in order to avoid the appearance of temperature gradient, and then the uneven situation of heat dissipation is generated, it can
A plurality of cooling duct in spiral distribution is set along the axial direction of explosion-proof housing, is equivalent to the axial direction for shortening cooling duct
Development length reduces the currency of coolant liquid, and then reduces the influence of temperature gradient.
In addition, the extending direction of cooling duct is parallel with the axial direction of explosion-proof housing.Wherein can by cooling duct into
Outlet is separately positioned on the both ends of explosion-proof housing, and structure is simple, manufacturing process is simple, and heat dissipation is uniform, wherein in order to reduce water
The influence of flow resistance power, so to increase inlet pressure.
Further, the cooling duct communicated in the shell of explosion-proof housing equipped with a plurality of head and the tail.
Specifically, explosion-proof housing includes that outer barrel, inner cylinder and water channel muscle, outer barrel are set in outside inner cylinder, water channel
Muscle is arranged between outer barrel and inner cylinder, and outer barrel and outer barrel and water channel muscle constitute cooling duct.During fabrication, water channel
After the completion of the welding of the lateral wall of muscle and inner cylinder, outer barrel is assembled using hot robin with inner cylinder, is welded outside both ends later
Flange.
Further, the armature spindle for installing p-m rotor is insulation rotor axis, and the bearing for being used to support armature spindle is
Insulation bearing.In the process of running, shaft current is quite serious to the damage of motor for constant speed permanent magnet synchronous motor 5, is turned by insulation
Sub- axis and insulation bearing can effectively improve the service life of constant speed permanent magnet synchronous motor 5.
In conclusion permanent magnet synchronous motor is fire-proof motor, by the parts such as explosion-proof housing, stator, rotor, explosion-proof end cover group
At being that underground uses, meets the product of explosion-proof criteria, explosion-proof housing is finished after being connect by roll of steel plate pressure welding, is being guaranteed
In the case that original asynchronous machine center height is constant, required to be designed to different installation dimensions according to user.Its cooling knot
Structure can be designed to water cooling and air-cooled two kinds of structures, and water-cooling structure can be divided into axial cooling and circumferential cooling two kinds of structure types,
Air-cooled structure is mainly formed by cooling fin one by one along axial uniform welding.Explosion-proof end cover is welded by steel plate, can be with
It is divided into water cooling and air-cooled two kinds of structure situations.Air-cooled radiating ribs are segmented into transverse direction, radial and radiation structure type.The electricity
Machine is constant speed motor, and rated speed 500-3000r/min, the reason of being designed as constant speed motor is that scrapper conveyor application space is narrow
It is narrow, cause motor that can not improve size, new drive system can only be designed on the size basis of existing scrapper conveyor necessary electromotor
Motor product.The motor is permanent magnet synchronous motor, as the synchronous motor of permanent magnet participation excitation.
Stator punching is stamped to form by silicon steel sheet, and silicon steel sheet is divided into two kinds of manufacture crafts of hot rolling and cold rolling, stator punching
Size be optimal performance by professional electromagnetic design, laminating molding by professional tooling later.After stator is powered, generate
One rotating excitation field is the major impetus component of motor rotation.It is made of stator core and stator winding.Stator core is
It is overrided to form by blocks of stator punching.The magneto starting torque big to acquisition, it is necessary to have corresponding big starting electricity
Stream.And big starting current can not only form big impact to power grid under mine, but also stator winding fever can be made severe, it is fixed to bring
Sub- winding is breakdown and the harm such as permanent magnet loss of excitation.
P-m rotor itself can generate permanent magnetic field under the action of permanent magnet, be the main component of motor rotation.It is general
Logical asynchronous motor needs a part of power of motor to generate magnetic field, forms to provide the operating of motor, this Partial Power custom
Claiming " reactive power " this Partial Power is to be not transmitted to outside, is existed only between motor and power supply.And magneto is forever
Magnet rotor can generate permanent magnetic field to provide motor operating, without reactive power consumption by permanent-magnet material itself.So magneto
Power factor can achieve between 0.95~1.The manufacture craft of rotor punching is the same with stator, mosaic magnet in rotor,
The installation of permanent magnet is divided into embedded and two kinds of frame modes of external labeling type.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Heavy permanent magnetism scrapper conveyor provided by the present invention is described in detail above.Specific case used herein
Principle and implementation of the present invention are described, the above embodiments are only used to help understand side of the invention
Method and its core concept.It should be pointed out that for those skilled in the art, not departing from the principle of the invention
Under the premise of, it can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the claims in the present invention
In protection scope.The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use this hair
It is bright.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, originally
Invention is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein
Consistent widest scope.
Claims (6)
1. a kind of heavy type permanent magnetism scrapper conveyor characterized by comprising chain wheel assembly, scraper chain, retarder and setting are in mine
Constant speed permanent magnet synchronous motor and the frequency converter that is connected with the constant speed permanent magnet synchronous motor；The constant speed permanent magnet synchronous electric
Machine is connected with the retarder, and the retarder is connected with the chain wheel assembly, the chain wheel assembly and the scraper plate chain link,
The permanent magnet synchronous motor includes explosion-proof housing, stator, p-m rotor and explosion-proof end housing, is equipped in the shell of the explosion-proof housing
Cooling duct, the explosion-proof housing are externally provided with radiating ribs.
2. heavy type permanent magnetism scrapper conveyor according to claim 1, which is characterized in that the cooling duct is along the explosion-proof housing
Circumferential Spiral distribution.
3. heavy type permanent magnetism scrapper conveyor according to claim 1, which is characterized in that the extending direction of the cooling duct and institute
The axial direction for stating explosion-proof housing is parallel.
4. heavy type permanent magnetism scrapper conveyor according to claim 3, which is characterized in that be equipped in the shell of the explosion-proof housing more
The cooling duct that item head and the tail communicate.
5. heavy type permanent magnetism scrapper conveyor according to claim 1, which is characterized in that the explosion-proof housing includes outer barrel, interior
Cylinder and water channel muscle, the outer barrel are set in outside the inner cylinder, and water channel muscle setting is in the outer barrel and described
Between inner cylinder, the outer barrel and the outer barrel and the water channel muscle constitute the cooling duct.
6. heavy type permanent magnetism scrapper conveyor according to any one of claims 1 to 5, which is characterized in that for installing the permanent magnetism
The armature spindle of rotor is insulation rotor axis, and the bearing for being used to support the armature spindle is insulation bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811475965.0A CN109353756A (en) | 2018-12-04 | 2018-12-04 | Heavy permanent magnetism scrapper conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811475965.0A CN109353756A (en) | 2018-12-04 | 2018-12-04 | Heavy permanent magnetism scrapper conveyor |
Publications (1)
| Publication Number | Publication Date |
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| CN109353756A true CN109353756A (en) | 2019-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811475965.0A Withdrawn CN109353756A (en) | 2018-12-04 | 2018-12-04 | Heavy permanent magnetism scrapper conveyor |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951068A (en) * | 2010-09-02 | 2011-01-19 | 孙兆刚 | Water-cooled permanent magnet synchronous brushless DC motor |
| CN107225371A (en) * | 2017-07-27 | 2017-10-03 | 中车株洲电机有限公司 | A kind of magneto water cooling base manufacture method |
| CN107477150A (en) * | 2017-08-17 | 2017-12-15 | 宁夏天地奔牛实业集团有限公司 | Coal mine scraper conveyor starts intelligent transmission system with flexible |
| CN107555082A (en) * | 2017-09-26 | 2018-01-09 | 中国矿业大学 | A kind of intelligent water-cooled straight drive system of drag conveyor permanent-magnetic variable-frequency |
| CN209142983U (en) * | 2018-12-04 | 2019-07-23 | 兖矿东华重工有限公司 | Heavy permanent magnetism scrapper conveyor |
-
2018
- 2018-12-04 CN CN201811475965.0A patent/CN109353756A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951068A (en) * | 2010-09-02 | 2011-01-19 | 孙兆刚 | Water-cooled permanent magnet synchronous brushless DC motor |
| CN107225371A (en) * | 2017-07-27 | 2017-10-03 | 中车株洲电机有限公司 | A kind of magneto water cooling base manufacture method |
| CN107477150A (en) * | 2017-08-17 | 2017-12-15 | 宁夏天地奔牛实业集团有限公司 | Coal mine scraper conveyor starts intelligent transmission system with flexible |
| CN107555082A (en) * | 2017-09-26 | 2018-01-09 | 中国矿业大学 | A kind of intelligent water-cooled straight drive system of drag conveyor permanent-magnetic variable-frequency |
| CN209142983U (en) * | 2018-12-04 | 2019-07-23 | 兖矿东华重工有限公司 | Heavy permanent magnetism scrapper conveyor |
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Application publication date: 20190219 |